/*******************************************************************************
 * This file is part of blueprint4j www.blueprint4j.org.
 * 
 *     blueprint4j is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU Lesser General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * 
 *     blueprint4j is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU Lesser General Public License for more details.
 * 
 *     You should have received a copy of the GNU Lesser General Public License
 *     along with blueprint4j. If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package blueprint4j.db;

import java.math.BigDecimal;
import java.math.BigInteger;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;
import java.sql.*;
import java.io.*;

import blueprint4j.utils.*;

import javax.swing.ImageIcon;

/**
 * Represents an implemented version of FieldImageInterface
 * Two other classes will extends from this class to form a FieldImage that stores
 * a large image, that does not get loaded, and a normal one that stores thumbnail reference, and 
 * owns a large instance
 */
public abstract class FieldImageImpl extends FieldBlob implements BindImageInterface {

	/**
	 * public Field( Blob p_name, Blob p_description, boolean p_key_field
	 *
	 * Name: Name of field -> equivalent to table.field_name
	 * Description: Description of field
	 * key_field: Is this field a key field in the table (index field)
	 */
	public FieldImageImpl( String p_name, int p_field_type ,String p_description,Entity entity ) {
		super( p_name,p_field_type,p_description,entity );
	}

	protected void setFieldValue( ResultSet result_set )
	throws DataException {
		try {
			super.setFieldValue(result_set);
			if (getObject() != null) {
				setObject( (ImageIcon) new ObjectInputStream(new ByteArrayInputStream((byte[])getObject())).readObject());
			}
		} catch (Exception exception) {
			throw new DataException(exception);
		}
	}

	public ImageIcon get() {
		return (ImageIcon)(getObject());
	}

	public byte[] getObjectAsBytes() throws java.io.IOException {
		if (get() != null) {
			ByteArrayOutputStream byteout = new ByteArrayOutputStream();
			new ObjectOutputStream( byteout).writeObject(get());
			return byteout.toByteArray();
		} else {
			return null;
		}
	}

	public String toString() {
		try {
			if (get() != null) {
				ByteArrayOutputStream byteout = new ByteArrayOutputStream();
				new ObjectOutputStream( byteout).writeObject(get());
				return new String(Base64.encode(byteout.toByteArray()));
			} else {
				return "null";
			}
		} catch (Exception  exception) {
			exception.printStackTrace();
			Log.critical.out(exception);
			return null;
		}
	}

	public abstract void set(ImageIcon image) throws BindException; 

	/**
	 * An overloaded equals method that only accepts the correct type
	 */
	public boolean equals(String value) {
		return toString().equals(value);
	}

	public Object getPreparedStatementObject()
	throws DataException {
		if (getObject() == null)
			return null;
		return toString();
	}

	public void setSerializable(String value) throws BindException {
		try {
			if ("null".equalsIgnoreCase(""+value)) {
				setObject(null);
			} else {
				setObject( (ImageIcon) new ObjectInputStream(new ByteArrayInputStream(Base64.decode(value.toCharArray()))).readObject());
			}
		} catch (Exception ex) {
			Log.debug.out(ex);
		}
	}

	public String getSerializable() throws BindException {
		return toString();
	}
	
}

